dealings vs dealing

dealings and dealing both are nouns.

Word	Noun	Adjective	Verb	Adverb
dealings	Yes	No	No	No
dealing	Yes	No	No	No

As nouns, dealings and dealing are synonyms defined as:

dealings and dealing: the act of transacting within or between groups (as carrying on commercial activities)

Other synonyms of dealings include transaction.

dealings (noun)	dealing (noun)
the act of transacting within or between groups (as carrying on commercial activities)	method or manner of conduct in relation to others
social or verbal interchange (usually followed by `with')	the act of transacting within or between groups (as carrying on commercial activities)
mutual dealings or connections or communications among persons or groups